[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-ha-dev
Subject: Re: [Linux-ha-dev] Vmware server 2.0 resource agent
From: "Andrew Beekhof" <beekhof () gmail ! com>
Date: 2008-07-24 10:10:56
Message-ID: 26ef5e70807240310g5aebdbe0j3f7aeebd59d66e51 () mail ! gmail ! com
[Download RAW message or body]
To cover ourselves legally, I think we need a short note from your
boss saying that your company is knows and is fine with you submitting
this.
And possibly one from you saying that it's not a derivative work (ie.
you're not infringing on someone else's copyright)
Annoying but necessary :(
2008/7/22 Cristian Mammoli <cristian.mammoli@gmail.com>:
>
>
> 2008/7/22 Andrew Beekhof <beekhof@gmail.com>:
>>
>> here is good :)
>
> Ok, here we go:
>
> #!/bin/sh
> #
> # VMware OCF resource agent
> #
> # Copyright (c) 2008 Apra Sistemi s.r.l.
> # All Rights Reserved.
> #
> # Description: Manages a VMware server 2.0 as a High-Availability
> # resource
> #
> #
> # Author: Cristian Mammoli <c.mammoli AT apra DOT it>
> # License: GNU General Public License (GPL)
> # Copyright: (C) 2008 Apra Sistemi s.r.l.
> #
> # See usage() function below for more details...
> #
> # OCF instance parameters:
> # * OCF_RESKEY_VMXPATH (mandatory, full path to the virtual machine vmx
> file)
> # * OCF_RESKEY_VIMSHBIN (mandatory, full path to th vmware-vim-cmd
> executable)
> #
> # Requirements/caveats:
> # * vmware-server 2.0 RC1 installed and autostarted on all nodes
> # * vmdk files must be in the same directory of the vmx file
> # * vmx filenames must be unique, even if stored in different directories
> # * Default_Action_Timeout stock value (20 sec) isn't enough if you are
> # dealing with many virtual machines: raise it to something around 300
> secs
> # or use operation attributes with the proposed values
>
> # Initialization
> #################################################################
>
> # Source ocf shell functions
> . ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
>
> # Basic variables configuration
> #################################################################
>
> # Path to the virtual machine configuration file
> VMXPATH="$OCF_RESKEY_vmxpath"
>
> # Path to the vmware-vim-cmd executable
> VIMSHBIN="$OCF_RESKEY_vimshbin"
>
> # vmware-vim-cmd functions
> #################################################################
>
> # Get virtual machine vid
> vmware_get_vid() {
> $VIMSHBIN vmsvc/getallvms 2>/dev/null \
> | awk '/\/'"$1"'/ {print $1}'
> }
>
> # Is the vm waiting for input after a migration?
> vmware_uuid_alt() {
> $VIMSHBIN vmsvc/message $1 2>/dev/null \
> | awk /^msg.uuid.altered/
> }
>
> # Get message id
> vmware_get_msgid() {
> $VIMSHBIN vmsvc/message $1 2>/dev/null \
> | awk '/^Virtual machine message/ {print $4}' \
> | awk -F : '{print $1}'
> }
>
> # Answers message
> vmware_answer_msg() {
> $VIMSHBIN vmsvc/message $1 $2 $3 &> /dev/null
> }
>
> # Register a virtual machine
> vmware_register_vm() {
> $VIMSHBIN solo/registervm '"'$1'"' &> /dev/null
> }
>
> # Unregister a virtual machine
> vmware_unregister_vm() {
> $VIMSHBIN vmsvc/unregister $1 &> /dev/null
> }
>
> # Start a virtual machine
> vmware_poweron_vm() {
> $VIMSHBIN vmsvc/power.on $1 &> /dev/null
> }
>
> # Suspend a virtual machine
> vmware_suspend_vm() {
> $VIMSHBIN vmsvc/power.suspend $1 &> /dev/null
> }
>
> # Get virtual machine power state
> vmware_get_status() {
> $VIMSHBIN vmsvc/power.getstate $1 2>/dev/null \
> | awk '/^Powered on/ || /^Powered off/ || /^Suspended/'
> }
>
> # Get vid of missing virtual machines
> vmware_get_broken() {
> $VIMSHBIN vmsvc/getallvm 2>&1 \
> | awk -F "'" '/^Skipping/ {print $2}'
> }
>
> # Variables depending on the above functions
> #################################################################
>
> # Directory containing the virtual machine
> VMXDIR="`dirname "$VMXPATH"`"
>
> # Basename of the configuration file
> RELVMXPATH="`basename "$VMXPATH"`"
>
> # Vid of the virtual machine (can be empty if the vm is not registered)
> VMID=`vmware_get_vid "$RELVMXPATH"`
>
> # Power state of the virtual machine (can be empty if the vm is not
> registered)
> VMSTATE="`vmware_get_status $VMID`"
>
> # Virtual machine name
> VM="`awk -F '"' '/^displayName/ {print $2}' "$VMXPATH"`"
>
> # msg.autoAnswer value in config file
> VMAUTOMSG="`awk -F '"' '/^msg.autoAnswer/ {print $2}' "$VMXPATH"`"
>
> # Main functions
> #################################################################
>
> # Print usage summary
> vmware_usage() {
> cat <<END
> usage: $0 {start|stop|status|monitor|meta-data|validate-all}
>
> Expects to have a fully populated OCF RA-compliant environment set.
> END
> }
>
> # Check for mandatory files presence and consistency
> vmware_validate() {
> if [ -z "`pidof vmware-hostd`" ]; then
> ocf_log err "vmware-hostd is not running: aborting"
> exit $OCF_ERR_GENERIC
> fi
>
> if [ ! -x "$VIMSHBIN" ]; then
> ocf_log err "vmware-vimsh executable missing or not in path ($VIMSHBIN):
> aborting"
> exit $OCF_ERR_ARGS
> fi
>
> if [ ! -f "$VMXPATH" ]; then
> ocf_log err "Specified vmx file ($VMXPATH) does not exist: aborting"
> exit $OCF_ERR_ARGS
> fi
>
> if [ -z "$VM" ]; then
> ocf_log err "Could not find out virtual machine name: aborting"
> exit $OCF_ERR_ARGS
> fi
>
> if [ "$VMAUTOMSG" != "TRUE" ]; then
> ocf_log warn "Please set msg.autoAnswer = \"TRUE\" in your config file"
> fi
>
> # $VMID and $VMSTATE are allowed to be empty in case we are validating a
> # virtual machine which is not registered
>
> return $OCF_SUCCESS
> }
>
> # Start a virtual machine
> vmware_start() {
> # Don't start a VM if it's already running
> if [ "$VMSTATE" = "Powered on" ]; then
> ocf_log info "Virtual machine $VM is already running"
> return $OCF_SUCCESS
> else
> # Removes stale lockfiles and missing virtual machines
> # in case of a crash.
> # Do not use with a clustered filesystem or you could
> # end up starting the same VM in more than one node
> ocf_log info "Removing stale lockfiles"
> find "$VMXDIR" -name \*.lck -type f -exec rm "{}" \;
> for BVM in `vmware_get_broken`; do
> ocf_log info "Unregistering missing virtual machine $BVM"
> vmware_unregister_vm $BVM
> done
> if [ -z "$VMID" ]; then
> # VM is not registered, need to register
> ocf_log info "Virtual machine $VM is not registered"
> ocf_log info "Registering Virtual machine $VM"
> vmware_register_vm "$VMXPATH"
> VMID=`vmware_get_vid "$RELVMXPATH"`
> if [ -z "$VMID" ]; then
> ocf_log err "Could not register virtual machine $VM: aborting."
> exit $OCF_ERR_GENERIC
> fi
> ocf_log info "Virtual machine $VM registered with ID $VMID"
> fi
> ocf_log info "Powering on virtual machine $VM"
> vmware_poweron_vm $VMID
> # Give the VM some time to initialize
> sleep 10
>
> if [ "$VMAUTOMSG" != "TRUE" ]; then
> # msg.autoAnswer is not set: we try to deal with the
> # most common question: msg.uuid.altered
> ocf_log info "Checking msg.uuid.altered on VM $VM"
> if [ -n "`vmware_uuid_alt $VMID`" ]; then
> MSGID=`vmware_get_msgid $VMID`
> vmware_answer_msg $VMID $MSGID 2
> fi
> fi
>
> # Check if the VM is running. We don't bother
> # with timeouts: we rely on the CRM for that.
> while [ "$VMSTATE" != "Powered on" ]; do
> ocf_log info "Virtual machine $VM is still stopped: delaying 10
> seconds"
> sleep 10
> VMSTATE="`vmware_get_status $VMID`"
> done
>
> ocf_log info "Virtual machine $VM is running"
> return $OCF_SUCCESS
> fi
> }
>
> # Stop a virtual machine
> vmware_stop() {
> # Don't stop a VM if it's not registered
> if [ -z "$VMID" ]; then
> ocf_log info "Virtual machine $VM is not registered"
> return $OCF_SUCCESS
> else
> # Don't stop a VM if it's already stopped
> if [ "$VMSTATE" != "Powered on" ]; then
> ocf_log info "Virtual machine $VM is already stopped"
> else
> # If the VM is running send a suspend signal and wait
> # until it is off. We don't bother with timeouts: we
> # rely on the CRM for that.
> ocf_log info "Virtual machine $VM is running: suspending it"
> vmware_suspend_vm $VMID
> sleep 5
> while [ "$VMSTATE" = "Powered on" ]; do
> ocf_log info "Virtual machine $VM is still running: delaying 10
> seconds"
> sleep 10
> VMSTATE="`vmware_get_status $VMID`"
> done
> fi
> ocf_log info "Unregistering virtual machine $VM"
> vmware_unregister_vm $VMID
> VMID=`vmware_get_vid "$RELVMXPATH"`
> if [ -n "$VMID" ]; then
> ocf_log err "Could not unregister virtual machine $VM: aborting."
> exit $OCF_ERR_GENERIC
> fi
> ocf_log info "Virtual machine $VM is stopped"
> return $OCF_SUCCESS
> fi
> }
>
> # Monitor a virtual machine
> vmware_monitor() {
> if [ "$VMSTATE" = "Powered on" ]; then
> ocf_log info "Virtual machine $VM (ID $VMID) is running..."
> return $OCF_SUCCESS
> else
> ocf_log info "Virtual machine $VM is stopped/suspended/not registered"
> return $OCF_NOT_RUNNING
> fi
> }
>
> # Print metadata informations
> meta_data() {
> cat <<END
> <?xml version="1.0"?>
> <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
> <resource-agent name="vmwarevm">
> <version>0.1</version>
> <longdesc lang="en">
> OCF compliant script to control vmware server 2.0 virtual machines.
> </longdesc>
> <shortdesc lang="en">VMWare server 2.0 resource agent</shortdesc>
>
> <parameters>
> <parameter name="vmxpath" unique="0" required="1">
> <longdesc lang="en">
> VMX configuration file path
> </longdesc>
> <shortdesc lang="en">VMX file path</shortdesc>
> <content type="string"/>
> </parameter>
>
> <parameter name="vimshbin" unique="0" required="1">
> <longdesc lang="en">
> vmware-vim-cmd executable path
> </longdesc>
> <shortdesc lang="en">vmware-vimsh path</shortdesc>
> <content type="string" default="/usr/bin/vmware-vim-cmd"/>
> </parameter>
> </parameters>
>
> <actions>
> <action name="start" timeout="300" />
> <action name="stop" timeout="300" />
> <action name="monitor" timeout="30" interval="300" depth="0"
> start-delay="60" />
> <action name="meta-data" timeout="5" />
> </actions>
> </resource-agent>
> END
> }
>
> # See how we were called
> #################################################################
>
> case $1 in
> meta-data)
> meta_data
> exit $OCF_SUCCESS
> ;;
>
> start)
> vmware_validate
> vmware_start
> ;;
>
> stop)
> vmware_stop
> ;;
>
> status|monitor)
> vmware_monitor
> ;;
>
> usage|help)
> vmware_usage
> exit $OCF_SUCCESS
> ;;
>
> validate-all)
> vmware_validate
> ;;
>
> *)
> vmware_usage
> exit $OCF_ERR_UNIMPLEMENTED
> ;;
>
> esac
> exit $?
>
>
>
> _______________________________________________________
> Linux-HA-Dev: Linux-HA-Dev@lists.linux-ha.org
> http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
> Home Page: http://linux-ha.org/
>
>
_______________________________________________________
Linux-HA-Dev: Linux-HA-Dev@lists.linux-ha.org
http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
Home Page: http://linux-ha.org/
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic